Abstracts tagged "T Cell"

Abstract Number: 0603 • ACR Convergence 2022
Survivin-dependent Regulation of Bivalent Chromatin and Its Relevance for Adaptive Immunity
Venkataragavan Chandrasekaran¹, Nina Oparina², Karin Andersson², Malin Erlandsson², Maria-Jose Garcia-Bonete³, Maja Jensen⁴, Gergely Katona⁵ and Maria Bokarewa⁶, ¹Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden, ²Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Goteborg, Sweden, ³Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden, ⁴Department of Chemistry and Molecular Biology, Gothenburg, Sweden, ⁵Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden, ⁶Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Göteborg, Sweden
Background/Purpose: Bivalent chromatin (BvCR) is characterized by simultaneous binding of active and repressive modifications to the histone H3 proteins. Influencing expression of the genes, BvCR…
Abstract Number: 1180 • ACR Convergence 2022
Deficiency and Altered Phenotype of Mucosal-associated Invariant T Cells in Systemic Sclerosis
Manon Lesturgie-Talarek¹, Virginie Gonzalez¹, Camelia Frantz², Noémie Sénot¹, Zouriatou Gouda¹, Camille Rousseau¹, Lucie Beaudoin¹, Agnès Lehuen¹, Jérôme Avouac³ and Yannick Allanore⁴, ¹INSERM U1016, Institut Cochin, Paris, France, ²Hôpital Cochin, AP-HP Centre - Université Paris Cité, Paris, France, ³University of Paris, Paris, France, ⁴Department of Rheumatology A, Descartes University, APHP, Cochin Hospital, Paris, France, Paris, France
Background/Purpose: Systemic sclerosis (SSc) is an autoimmune disease characterized by fibrosis of the skin and internal organs such as the lung. Mucosal-associated invariant T (MAIT)…
Abstract Number: 1736 • ACR Convergence 2022
IL-23 Signaling Induces Autoimmune Disease Genes in Mucosal-Associated Invariant T Cells
Tharshana Stephen¹, Ambre Dangien¹, Claire Leloup¹, Ikram Mezghiche¹, Laetitia Camard¹, Hanan Yahia-Cherbal¹, Vincent Guillemot², Natalia Pietrosemoli¹, Hélène Lopez-Maestre¹, Julie Marsande¹, Milena Hasan¹, Dan Cua³, Anne Fourie⁴, Carrie Greving⁵, Raphaelle Parker⁶, Barbara Joyce Shaikh⁷, Bénédicte Oulès⁸, Sarah Guégan⁸, Sélim Aractingi⁸, Elisabetta Bianchi¹ and Lars Rogge¹, ¹Institut Pasteur, Paris, France, ²Institut Pasteur, Paris, Ile-de-France, France, ³Janssen Research and Development, LLC, Spring House, PA, ⁴Janssen Research & Development, LLC, San Diego, CA, USA, San Diego, CA, ⁵Janssen Research & Development, LLC, San Diego, CA, USA, San Diego, ⁶Janssen Research & Development, Janssen-Cilag, Paris, France, ⁷Janssen Research & Development, LLC, San Diego, CA, ⁸Hôpital Cochin, AP-HP, Paris, France
Background/Purpose: Genome-wide association studies and mouse models of autoimmune disease have demonstrated an important role of the IL-23 signaling pathway in the pathogenesis of axial…
Abstract Number: 2144 • ACR Convergence 2022
JAK Inhibition Re-balances Gene Expression Profile of Circulating Immune Cells in Patients with Psoriatic Arthritis
Maria Gabriella Raimondo¹, Charles Gwellem Anchang¹, Hannah Labinsky², Mina Saad Aziz Saad¹, Simon Rauber¹, Mario Vogg¹, Eleni Kampylafka¹, Johannes Knitza¹, Alina Soare¹, Georg Schett³ and Andreas Ramming¹, ¹Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany; Deutsches Zentrum Immuntherapie, Friedrich-Alexander-UniversityErlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ²Department of Internal Medicine 3 - Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, 91054 Erlangen, Germany; Deutsches Zentrum Immuntherapie, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany, ³Universitätsklinikum Erlangen, Erlangen, Germany
Background/Purpose: Janus Kinase (JAK)/Signal Transducers and Activator of Transcription (STAT) is not only involved in IL23- signaling, but rather implemented into a broad range of…
Abstract Number: 0624 • ACR Convergence 2022
CD20+ T Cells in the Synovial Fluid of Patients with Rheumatoid Arthritis Suggest a Role for Trogocytosis in Disease Pathogenesis and Activity
Maria De Santis¹, Natasa Isailovic², Giacomo Maria Guidelli³, Daniela Renna⁴, Arianna Sonaglia³, Nicoletta Luciano³, Marta Caprioli⁵, Angela Ceribelli¹, Francesca Motta⁶, Matteo Vecellio¹, Enrico Brunetta³ and Carlo Selmi¹, ¹Humanitas University, IRCCS Humanitas Research Hospital, Rheumatology and Clinical Immunology, Pieve Emanuele, Italy, ²IRCCS Humanitas Research Hospital, Rozzano (MI), Italy, Rozzano, Italy, ³IRCCS Humanitas Research Hospital, Rheumatology and Clinical Immunology, Rozzano, Italy, ⁴IRCCS Humanitas Research Hospital, Rheumatology and Clinical Immunology, Milano, Italy, ⁵IRCCS Humanitas Research Hospital, Rheumatology and Clinical Immunology, Pavia, Italy, ⁶Humanitas University, IRCCS Humanitas Research Hospital, Rheumatology and Clinical Immunology, Rozzano, Italy
Background/Purpose: Approximately 1-2% of peripheral blood T cells express CD20, a marker of the B lineage, in both healthy individuals and patients with rheumatoid arthritis…
Abstract Number: 1440 • ACR Convergence 2022
Interrelation of T-cell Cytokines and Autoantibodies in Lupus Nephritis: A Cross-sectional Study
Fatima Alduraibi¹, Kathryn Sullivan¹, Winn Walter Chatham², Hui-Chen Hsu¹ and John Mountz¹, ¹University of Alabama at Birmingham, Birmingham, AL, ²University of Alabama at Birmingham, Clinical Immunology and Rheumatology, Birmingham, AL
Background/Purpose: To determine if different classes of lupus nephritis (LN) are correlated with specific circulating autoantibodies (autoAbs) and T-helper cell cytokines and other manifestations of…
Abstract Number: 1738 • ACR Convergence 2022
Characterization of T Cell Subsets in the Synovium of Chronic Inflammatory Joint Diseases
Alexandra Khmelevskaya¹, Miranda Houtman², Kristina Buerki³, Chantal Pauli⁴, Sam Edalat³, Mojca Frank-Bertoncelj³, Oliver Distler⁵, Adrian Ciurea⁶, Caroline Ospelt⁷ and Raphael Micheroli⁸, ¹Center of Experimental Rheumatology, University Hospital of Zurich, Zürich, Switzerland, ²University of Zurich, Schlieren, Switzerland, ³Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, Zürich, Switzerland, ⁴Department of Pathology, University Hospital Zurich, Zürich, Switzerland, ⁵Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ⁶University Hospital Zurich, Zürich, Switzerland, ⁷Center of Experimental Rheumatology, Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ⁸University Hospital Zurich, Department of Rheumatology, Zürich, Switzerland
Background/Purpose: Rheumatoid arthritis (RA), psoriatic arthritis (PsA), peripheral spondyloarthritis (pSpA), and undifferentiated arthritis (UA) are chronic immune-mediated conditions characterized by joint inflammation. The specific role…
Abstract Number: 2181 • ACR Convergence 2022
Gut Microbe-derived Short-Chain Fatty Acids Regulate Arthritis and Myositis During Chikungunya Virus Infection
Fang R. Zhao¹, Emma Winkler¹, Chun-Jun Guo², Russell B. Williams³, Leran Wang¹, Ana Jung¹, Lindsay Droit¹, Leah Heath¹, Ting-ting Li², Matthias Mack⁴, Megan T. Baldridge¹, Thaddeus S. Stappenbeck⁵, Larissa B. Thackray¹, Scott A. Handley¹, Michael A. Fischbach⁶ and Michael S. Diamond¹, ¹Washington University in St. Louis, St. Louis, MO, ²Cornell University, New York, NY, ³Donald Danforth Plant Science Center, St. Louis, MO, ⁴University Hospital Regensburg, Regensburg, Germany, ⁵Cleveland Clinic, Cleveland, OH, ⁶Stanford University, Stanford, CA
Background/Purpose: The intestinal microbiota regulates musculoskeletal inflammation and antibiotic use increases risk for the development or relapse of inflammatory arthritis. However, the basis for this…
Abstract Number: L07 • ACR Convergence 2021
Depletion of KLRG1+ T Cells in a First-in-human Clinical Trial of ABC008 in Inclusion Body Myositis (IBM)
Niti Goel¹, Dulce Soler-Ferran², Monette Coutreau², Jorge Escobar³, Kate Courtemanche², Merrilee Needham⁴ and Steven Greenberg⁵, ¹Abcuro, Inc.; Duke University, Durham, NC, ²Abcuro, Inc., Newton, MA, ³Abcuro, Inc., Hayward, CA, ⁴Perron Institute, Murdoch University, Perth, Australia, ⁵Brigham and Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: Inclusion body myositis (IBM), a relentlessly progressive autoimmune skeletal muscle disease, has no effective available pharmacological therapy. A prominent feature of IBM on microscopy…
Abstract Number: 0547 • ACR Convergence 2021
Autologous Haematopoietic Stem Cell Transplantation for Systemic Sclerosis Results in Sustained Changes in Immunoregulatory T and NK Cells
Ross Penglase, Malini Visweswaran, John Zaunders, Laila Girgis, David Ma and John Moore, St Vincent's Hospital, Sydney, Australia
Background/Purpose: Autologous Haematopoietic Stem Cell Transplantation (AHSCT) is an effective treatment for severe systemic sclerosis (SSc). To date, mechanistic studies have indicated possible pro-regulatory and…
Abstract Number: 1514 • ACR Convergence 2021
Age-related Metabolic Reprogramming of Memory CD4+ T Cells Is Associated with Reactive Oxygen Species-induced Immune Cell Dysfunction
Yuling Chen¹, Pierre-Louis Krau², Pelle Löwe³, Moritz Pfeiffenberger⁴, Lisa Ehlers³, Alexandra Damerau⁴, Paula Hoff³, Frank Buttgereit⁵ and Timo Gaber⁴, ¹Charité University Medicine Berlin, Berlin, Germany, ²Charit Universittsmedizin Berlin, corporate member of Freie Universitt Berlin, Humboldt-Universitt zu Berlin, and Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany, ³Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany, ⁴Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany, ⁵Charité – Universitätsmedizin Berlin, Berlin, Germany
Background/Purpose: Inflamm-aging is a sterile, low-grade, chronic systemic inflammatory state characterized by an increase in proinflammatory cytokines involved in the development of most age-related diseases…
Abstract Number: 0692 • ACR Convergence 2021
Immunophenotyping of Inclusion Body Myositis Blood T Cells: Pathogenic and Biomarker Implications
Namita Goyal¹, Jonathan Cauchi¹, Tyler Irani¹, Nadia Araujo¹, Leo Wang², Marie Wencel¹, Vivian Li³, Steven Greenberg⁴ and Tahseen Mozaffar¹, ¹University of California Irvine, Irvine, CA, ²University of Washington, Seattle, WA, ³University of California, Irvine, CA, ⁴Brigham and Women's Hospital Department of Neurology, Boston, MA
Background/Purpose: The recent discovery of highly differentiated, killer cell lectin-like receptor subfamily G member 1 (KLRG1)+ T cells in the muscle of inclusion body myositis…
Abstract Number: 1750 • ACR Convergence 2021
Itolizumab, a Novel anti-CD6 Therapy, in Systemic Lupus Erythematosus Patients: Interim Safety Results from the Phase 1b EQUALISE Dose-escalation Study
Kenneth Kalunian¹, Richard Furie², Jai Radhakrishnan³, Vandana Mathur⁴, Krishna Polu⁴, Stephen Connelly⁴, Joel Rothman⁴, Cherie Ng⁴, Leslie Chinn⁵, Maple Fung⁶, Dolca Thomas⁷ and Chaim Putterman⁸, ¹UC San Diego, La Jolla, CA, ²Zucker School of Medicine at Hofstra/Northwell, Great Neck, NY, ³Columbia University, New York, NY, ⁴Equillium, Inc., La Jolla, CA, ⁵Equillium, Inc., South San Francisco, CA, ⁶Equillium, Inc., San Diego, CA, ⁷Equillium, Inc., Brooklyn, NY, ⁸Albert Einstein College of Medicine, Bronx, NY
Background/Purpose: CD6, a co-stimulatory receptor predominantly expressed on T cells, promotes CD4+ T cell proliferation and differentiation into Th1/Th17 cells. The CD6 ligand, activated leukocyte…
Abstract Number: 0693 • ACR Convergence 2021
Discovery of Antigen Specific CD4+ T Cells in Anti-HMGCR-positive Immune Mediated Necrotizing Myopathy
Eleni Tiniakou¹, Andrew Mammen² and Erika Darrah¹, ¹Johns Hopkins University, Baltimore, MD, ²National Institutes of Health, Bethesda, MD
Background/Purpose: Anti-3-hydroxy-3-methylglutaryl coenzyme A reductase (HMGCR)-positive immune mediated necrotizing myopathy (anti-HMGCR+ IMNM) is a unique myopathy characterized by IgG autoantibodies against HMGCR and a strong…
Abstract Number: 0947 • ACR Convergence 2021
Cytokine Competent Gut-joint Migratory T Cells Contribute to Inflammation in the Joint
Adam Lefferts¹, David Claypool¹, Eric Norman¹, Uma Kantheti¹ and Kristine Kuhn², ¹University of Colorado, Anschutz Medical Campus, Aurora, CO, ²University of Colorado Anschutz Medical Campus, Aurora, CO
Background/Purpose: Although studies have identified the presence of gut-associated cells in the enthesis of joints affected by spondyloarthritis, a direct link through cellular transit between…

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